On April 22, 2014, NASA asked people worldwide to answer the question, “Where are you on Earth right now?” with a selfie on social media -- and the world responded.
According to the administration, it had to work its way through more than 50,000 images submitted using the hashtag #globalselfie on Twitter, Instagram, Facebook, Google+ and Flickr. The goal? To use each picture as a pixel in the creation of a “Global Selfie” – a mosaic image that would look like Earth appeared from space on Earth Day 2014, according to NASA.
One month later, on May 22, NASA released the finished product, which was built using 36,422 individual photos from people on every continent – a total of 113 countries and regions.
"With the Global Selfie, NASA used crowd-sourced digital imagery to illustrate a different aspect of Earth than has been measured from satellites for decades: a mosaic of faces from around the globe," said Peg Luce, deputy director of the Earth Science Division in the Science Mission Directorate at NASA Headquarters, Washington, in a statement. "We were overwhelmed to see people participate from so many countries."
Zoom in below to see the individual photos that make up this mosaic: